Depo-Provera, irregular bleeding, get pregnant?

Hi i am on Depo-Provera, and i get irregular bleeding, I have been on the shot for about 3 weeks now. Can i get pregnant whilst bleeding? I am new to this, so if someone could give me a explanation on what is going on? am i safe?

It's not a period. It's breakthrough bleeding, so no, you are not fertile. It's just a pain in the @ss for the first couple of shots.If the bleeding gets heavy, you'll need to be monitored by a doctor, to ensure you don't become anaemic.Most people find their periods stop all together, by about the 3rd shot.

This of bc isnt good many women have complained about the constant bleeding for months at a time etc and it is harder to get pregnant and can also weeken the body try to get another form of bc they need to take it off the market.